Google Ads Match Types: Broad, Phrase and Exact, and Which to Use
Google Ads match types decide which searches your ads can appear on, and in too many accounts they are left on autopilot. Broad match is the default, so anyone who types a keyword in without quotes or brackets has opted into it without realising. That is not always a mistake, but it should be a choice.
Here is what each match type does, when it earns its place, and how we combine them.
What the three Google Ads match types actually do
Google's own guide to keyword matching options is short and worth reading once. In plain terms:
Exact match (square brackets, such as [red shoe]) shows your ad on searches with the same meaning or intent as the keyword. It gives you the most control and reaches the fewest searches. Note the wording: same meaning, not identical letters. Close variants are included.
Phrase match (quotation marks, such as "tennis shoes") shows your ad on searches that include the meaning of the keyword, including more specific versions of it. It reaches more than exact and less than broad.
Broad match (no punctuation) shows your ad on searches related to the keyword, including ones that do not contain its direct meaning. Google's example is that broad match "low carb diet plan" can show for "mediterranean diet books". Google may also draw on a user's recent searches and the content of your landing pages.
That last point matters. Broad match is no longer a loose keyword-matching tool. It is Google deciding relevance from signals you cannot see.
Why broad match needs Smart Bidding, or nothing
Google is blunt about this. Its broad match guide says it is "critical" to use Smart Bidding with broad match, because every search is different and bids need to respond to the context at auction time.
We agree, and would go further. Broad match on manual CPC is a bad idea. You are paying a flat bid for a spread of searches you did not choose, with no mechanism to pay less for the weak ones. If your account has no reliable conversion tracking feeding Smart Bidding, fix that first. Without it, broad match is a way of buying clicks from people who were never going to enquire.
When exact and phrase match still win
Broad match has a place, but it does not make the other two obsolete.
Use exact match for the terms that already pay. If a search term produces enquiries at a cost you are happy with, put it in as exact. It stops you relying on Google's interpretation for the searches that matter most. It also takes priority: Google's documentation says identical exact match keywords are prioritised over phrase and broad keywords, and over Performance Max.
Use phrase match for a controlled middle ground. It suits accounts with modest budgets, where a handful of campaigns cannot afford to learn from wasted spend. You get some flexibility on wording without letting the query wander into other topics.
Use broad match to find searches you would not think of. In a mature account with solid conversion data, broad match paired with Smart Bidding can surface demand your keyword list missed. In a new account, or one with a few conversions a month, it mostly surfaces irrelevant traffic.
The structure we use
We do not run every match type at once on the same keyword in the same ad group, and we do not treat the choice as permanent. A sensible pattern for most UK service businesses:
- Start with exact and phrase match on the five to ten terms that describe what you sell, plus your location where it matters.
- Run the campaign for long enough to collect real conversions, not just clicks.
- Read the search terms report weekly. Promote converting searches to exact match and exclude the rest.
- Test broad match in its own campaign, with its own budget and a Smart Bidding target, once you have enough conversion data to give the algorithm something to learn from. Keep it separate so you can judge it on its own numbers.
Your negative keywords are the control that matters
The more freedom you give Google, the more your exclusions matter. Google's negative keywords documentation contains a detail that catches people out: negative keywords do not expand to close variants or synonyms the way positive keywords do. If you exclude "free", you also need "freebie" and any other variants you want blocked. Google will not infer them.
Negative match types also behave differently from positive ones. A broad match negative only blocks a search containing all of its terms, so a two-word negative can leave a lot of waste untouched. For anything you are certain you never want, phrase or exact negatives are usually the safer choice.
Feed the process with the search terms report. Be aware that it hides terms with too little search activity, so it will never show you the whole picture. That is another reason to judge a match type by conversions rather than by what the report happens to reveal.
The mistake to avoid
The common failure is treating match types as a technical setting rather than a budget decision. Broader matching spends more money on more varied searches. Narrower matching spends it on fewer, more predictable ones. Neither is right in the abstract. The right answer depends on how much conversion data you have, how tight your budget is, and how well your tracking reflects real leads rather than form-fills from people who never answer the phone.
If you would like someone to look at your match types, search terms and tracking together, that is the first thing we do in our Google Ads management. Get in touch and we will tell you plainly where your budget is leaking.
